Unable to send mail

eM Client has worked flawlessly until yesterday. Now I can no longer send mails. I’m on version 6.0.24928.0, outlook account setup with IMAP. Everything fine with Outlook web application.
Here is a copy of the log:
08:18:39 [email protected] [SMTP]  Kobler til: Til [email protected]:18:51 [email protected] [POP3]  Kobler til: Til [email protected]
08:18:51 [email protected] [GData]  Synkroniserer mappeliste
08:18:51 [email protected] [GData]  Synkroniserer mappeliste
08:18:51 [email protected] [GData]  Synkroniserer mappeliste
08:18:51 [email protected] [GData]  Synkroniserer mappe ‘[email protected]/Contacts/’
08:18:51 [email protected] [GData]  Synkroniserer mappe ‘[email protected]/[email protected]/’
08:18:51 [email protected] [POP3]  Tilkoblet: Til [email protected]
08:18:51 [email protected] [POP3]  Laster ned meldinger: Fra [email protected]
08:18:51 [email protected] [POP3]  Frakoblet: Fra  [email protected]
08:18:51 [email protected] [POP3]  Frakoblet: Utført
08:19:00 [email protected] [SMTP]  MailExceptions.SocketException: Tilkobling feilet fordi: 
08:19:00     “Et tilkoblingsforsøk mislyktes fordi den tilkoblede parten ikke svarte på riktig måte etter en tidsperiode, eller den etablerte tilkoblingen mislyktes fordi den tilkoblede verten ikke svarte 65.55.176.126:25”
08:19:00    ved MailClient.Smtp.SmtpSendCommand.Connect(WorkerStatus status)
08:19:00    ved MailClient.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
08:19:00    ved MailClient.Commands.Command.Process(WorkerStatus status)
08:19:00 [email protected] [IMAP]  Synkroniserer undermapper: For mappe  [email protected]/
08:19:01 [email protected] [IMAP]  Synkroniserer undermapper: Utført

Hi,

Are you using ESET antivirus?

-Dave